An absence of visible ground feature, such as when landing over water, darkened areas or terrain made featureless by snow，can create the illusion that（ ）.
A.the aircraft is at a lower altitude than is the case, which may lead descends too low on approach.
B.the aircraft is at a higher altitude than is the case, , which may lead a pilot descends too low on approach.
C.the aircraft is at a higher altitude than is the case, , which may lead a pilot descends too high on approach.
正确答案是B